physical education. n. (Education) training and practice in sports, gymnastics, etc, as in schools and colleges. Abbreviation: PE. physâ²ical educaâ²tion. n. instruction in sports, exercise, and hygiene, esp. as part of a school or college program.
3. Stress/injury. Stress on the tissues or any type of injury in the mouth can cause canker sores. Since the sores are actually tiny ulcers, they can be caused by any kind of hard brushing or eating something that can cause bruises or lead to tissue inflammation in the mouth.
Certain foods can cause unusual and sometimes unpleasant side effects, such as bad breath and heartburn. Dental caries (cavities) Dental cavities are tiny holes in teeth and can aching pain in the tooth and jaw. Thrush (adults) Thrush is a fungal infection in the mouth causing whitish patches on the tongue and inside the cheeks.